The best is with a dietician and they can tell him/you what amts he should have depending on his wgt. Does he have a diabetes monitor One Touch will let you go on there if you do and they will let you put in your info and they ask you online some Q's about what you like to eat they will make up a diet for him and he can go in and if they gave him a food he doesn't like he can click on it and they will give him choices. It's good to help him out they give a lot of info to you also. He'll mainly have to monitor carbs in any form. Sweets are allowed but you have to learn to swap foods for the amt of carbs/sweets. He'll be ok once he gets used to how much of each thing he can have and when. Good Luck. Sue